Glue-applying machine



March 6, 1945. s DAVls 2,371,031

GLUELAPPLYING MACHINE Filed June 2, 1944 2 Sheets-Sheet 1 9 fl 0 W v I 0 26 w 2/ #3 W 4 4.9 I j; 49 20 March 6, 1945. s. s. DAVIS GLUE-APPLYING MACHINE 2 Sheets-Sheet 2 Filed June 2, 1944 5mm $1 Jam Ratented Mar. 6, 1945 UNITED STATES, PATENT OFFICE.

GLUE-APPLYING MACHINE Benjamin S. Davis, Newport News, Va., assignor to Newport News Forms 00., lnc., Newport News, Va., a corporation of Virginia Application June 2, 1944, Serial No. 538,441

3 Claims.

This invention relates to machines for applying fluid coatings, such as glue, to sheet or strip material. The present invention comprises a number of improvements over the glue-applying mechanism disclosed in my Patent No. 2,266,171, dated December 16, 1941.

An object of this invention is to provide a glueapplying machine which is capable of being adjusted to meet all requirements of use.

A further object of the invention'is to provide a mechanism for simultaneously applying two strips of glue to a passing strip or sheet and which will not become fouled by accumulations of excess glue.

An embodiment of the glue-applying machine is shown by way of illustration in the accompanying drawings, in which:

Fig. 1 is a plan view of the glue-applying machine;

Fig. 2 is a vertical sectional view on line 2--2 of Fig. 1;

Fig. 3 is an end elevation, viewed as from the left in Fig. 1," part of the table on which the machine is mounted being shown in section;

Fig. 4 is a vertical sectional view on line 4-4 of Fig. 2' illustrating a detail; and

Fig. 5 is an enlarged sectional view of a glueapplying belt.

In the drawings, reference numeral I designates a portion of a table of a type similar to that illustrated in my Patent No. 2,266,171 and along which sheets or strips of material, such as paper, are passed by a conveying mechanism 2 which may include a belt and pin members. The glue-applying mechanism may be mounted on the edge of the table I by means of bracket members 3 in a position slightly elevated above the table surface. The frame of the machine comprises a base plate 5 to which is secured a pair of posts 6 extending upwardly and forwardly at an incline. At one edge of base plate 5 is secured a pair of brackets I which have upstanding plates provided with inclined slots 8. The glue pot 9 is secured to these upstanding plates by means of headed studs [0 which engage in the slots 8.

The means for feeding glue from the glue pot 9 comprises a dipping wheel ll mounted on a shaft 12 which is mounted in bearings l4 secured to the edges of the glue pot by means of brackets.

'The shaft 12 extends transversely through posts 6 and on its end opposite wheel H is provided with a drive wheel I6 adapted to be driven by a V belt (not shown). In order that the glue pot can be removed from the machine expeditiously for cleaning, the shaft I2 is provided with a disconnectible joint including a transversely extending tongue and groove arrangement l1.

Between the lower portions of posts 6 is pivotally mounted a forwardly extending beam member l9 adapted to be pivoted upwardly and downwardly, and toward the forward end of said beam member is mounted a transversely'extending shaft 20 secured in bearing 2|. On the free end portion of said shaft 20 is mounted a belt wheel22 in a position substantially in alignment with glue-feeding wheel I I previously mentioned. The pivot of beam 19 may comprise a pair of screw-threaded, pointed pinsextending inwardly through screw-threaded openings in posts 6 and having their points engaging in recesses in the edges-of beam IS. The beam member I9 is adjustably mounted in such manner as to be capable of two adjustments. On the top of beam I9 is secured'a leaf 24 to which is rotatably attached a rod 25. The rod 25 is provided with screw threads towards its upper end and is screwed into a tube-like member 26. The upper end of tlube 26 is connected with a crank member 21, the straight portions of which extend through upper portions of posts 6. The crank member is operable by arm 29 extending from one end thereof in convenient position for manipulation. It will be clear that by manipulation of arm 29 the position of wheel 22 can be readily and quickly moved from a lower to higher position and vice versa. Also, by relative turning of rod 25 and tube 26 a finer adjustment of the position to be assumed by wheel 22 will be at tained.

In the upper end portions of posts 6 is rotatably mounted a transversely extending journal 3|. This journal is provided with an eccentrically located bore 32 throughv which extends a shaft 34. On one end of shaft 34 is mounted'a drive wheel 35 substantially in alignment with drive wheel l6 previously mentioned, and-on the other end of said shaft is mounted a belt wheel 36.

The belt wheels 22 and 36 are formed at their edges so as to engage within a V-shaped groove formed on the inner periphery of a rubber belt 40, Fig. 5. This belt 40 is provided with a pair of flanges 4| extending outwardly around its edges, and the size and shape of these flanges corresponds to the size and shape of flanges 43 formed on the periphery of glue-feeding wheel II. In operation the flanges 4| of belt 46 are adapted to contact the glue picked up from the glue pot by the flanges of wheel H so as to have some of the glue transferred to the flanges of the rubber belt. For adjusting the relative positransferred from wheel I I to belt 40.

Belt 40 can be loosened or tightened for mounting on and dismounting from wheels 22 and 36 by manipulationoi the; arm 29;"

It will be noted that, in lowered position of adjustment, wheel 22 and belt 40 extend below the level of base plate 5 and the belt will lightlyengage with and transfer glue to a sheet; orstrip passing on conveyor 2. It is important that the position of belt 40 be very accuratelyadjusted in order not to transfer glue tothe conveyor when no sheet or strip is passing, and this finer adjustment is accomplished by relative turningoi rod; j

25 and tube 26. V

For the purpose of adjusting the amountv of l h h. W ll-h ar ied; by hee then-ad: justable seraperdeviee" 4.2, is provided. The scraper is in the. form of a, plate provided-with a e s 4 ubeten iellx ni ne inh e, o the edge portion. ofQwheel ll that is, the recess s r v de th, a. enguefii' i h x nd e: tween, the ,flanges, of wheel, LI ,and removes excess glue from the slot,bet vlnaen the flanges of, the wheel, Plate 42 is connected with arod 46; which te ds; hro h. an -egenins a, g t t e rear end of the -gluepot, and, the outer end f rod46 is screw-threadedand is fitted with a, wing utlfll, n;- he; 9129511 deof he lug; is r: an a e rin nci c ngh ed; nd bea in against pin x endin n rs y o g qd,4fi,-. y-sprin e n eqmlq e sed et een v n n n55flm e ee, he s ener ar, o t e ri ht. E saawlll. b er i ed b the p s i n o ine ut. 48! Ad acen he scraper; 42, the.ro d;4fi,is loosely-supported 1055a .40 7

b en 52 whi hxe t n he'edaes Q th s enet,

By the arrangements herein described, it is possible to make all necessary adjustments of the various parts of the machine for proper. application' of the glue and also for maintenance of the machine.

I claim:

1. In a glue-applying machine, a pair of belt wheels, a flexible belt on said wheels, means for supplying, tosaid belt a regulated; quantity of glue, a pivoted beam supporting one of said wheels, a crank, a rod connecting said crank with said beam means for actuating said crank to move the beam and its wheel through a major adjustment, means for adjusting the length of said rod to efiectm'inol adjustments of the beam and its wheel; and means fpr driving said belt.

2 Ina glue-applying machine, a pair of belt wheels, a f exible, belt on said wheels, a glue pot,

a wheel dipping into said pot and adapted to be contacted by the belt, means for adjusting the position. of one-oi. the, pair, of, wheelsto regulate he e n eet, o the. be w t he sluee e. ip.- ping wheel andthus, the, amount of glue transferredtq-the belt, means for, adjusting the position of theother belt wheelto regulatethetransfer of glue from the belt; tqthe-surface to, be glued, and means for driving the dipping wheel and one'of the belt Wheels,

3. In a glue-applying machine, a; frame-including a post, a gluefp ot aglue-dipping wheelhaving; its shaftrotatably mounted, on Said-flame,

a journal in' said post, said; journal. having an eccentrically. located; axially. extending-bore, a, shaft in said bore, a belt wheel on said shaft in sub: stantial alig ment with; the glue dipping wheel, el na lt wheel, and: ea Qr tatably adjusting the position of said- ,j ournal to adjust the position of, said belt wheel and belt relative to the dipping wheel.

BE JAMW 5- avis. 

